沧海青城
第6楼2013/08/15
45钢的化学成分C含量0.42~0.50%, Si含量为0.17~0.37% ,Mn含量0.50~0.80% ,Cr含量≤0.25% ,Ni含量≤0.30% ,Cu含量≤0.25%。
50钢的化学成分C0.47%-0.55%、Si0.17%-0.37%、Mn0.50%-0.80%、P≤0.035%、Ni≤0.30%、Cr≤0.15%、Cu≤0.25%
42CrMo的化学成分:C :0.38~0.45%,Si:0.17~0.37%, Mn:0.50~0.80%,S :≤0.035%, P :≤0.035%, Cr:0.90~1.20%, Ni:≤0.030%,Cu:≤0.030%,Mo:0.15~0.25%